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Meta is using old DDR4 memory in DDR5-only AI servers to save on hardware costs

Cutting corners: Faced with rising memory costs, Meta says it is reusing old DDR4 RAM in its servers rather than buying new hardware. The company revealed this week that it is repurposing DDR4 memory from decommissioned servers into its new DDR5-only machines, using a custom CXL ASIC that avoids the compatibility issues and major latency penalties that typically come with mixing memory generations. The design reportedly cuts AI inference server count by up to 25% and reduces job-restart and fragmentation overhead by 33%.
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WinRAR 7.23 fixes bugs, jokes that users are finally paying for it

WinRAR 7.23 fixes two security vulnerabilities, updates its bundled 7-Zip extraction library, and makes a few command-line tweaks. The release notes also include a playful nod to the archiver's legendary "infinite" trial, thanking users who supposedly finally bought the software. It's mostly a joke-but the security patches alone make this update worth installing.
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